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| author | Mark Brown <broonie@kernel.org> | 2018-01-08 15:54:50 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-01-08 15:54:50 +0000 |
| commit | 498495dba268b20e8eadd7fe93c140c68b6cc9d2 (patch) | |
| tree | 00d1562049d8bc2194fddd9ba0cbbe0812ad6f68 /drivers/base/node.c | |
| parent | d5cc0a1fcbb5ddbef9fdd4c4a978da3254ddbf37 (diff) | |
| parent | 5c256045b87b8aa8e5bc9d2e2fdc0802351c1f99 (diff) | |
| download | linux-498495dba268b20e8eadd7fe93c140c68b6cc9d2.tar.gz linux-498495dba268b20e8eadd7fe93c140c68b6cc9d2.tar.bz2 linux-498495dba268b20e8eadd7fe93c140c68b6cc9d2.zip | |
Merge branch 'fix/intel' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel
Diffstat (limited to 'drivers/base/node.c')
| -rw-r--r-- | drivers/base/node.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c index 3855902f2c5b..ee090ab9171c 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Basic Node interface support */ @@ -27,13 +28,21 @@ static struct bus_type node_subsys = { static ssize_t node_read_cpumap(struct device *dev, bool list, char *buf) { + ssize_t n; + cpumask_var_t mask; struct node *node_dev = to_node(dev); - const struct cpumask *mask = cpumask_of_node(node_dev->dev.id); /* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */ BUILD_BUG_ON((NR_CPUS/32 * 9) > (PAGE_SIZE-1)); - return cpumap_print_to_pagebuf(list, buf, mask); + if (!alloc_cpumask_var(&mask, GFP_KERNEL)) + return 0; + + cpumask_and(mask, cpumask_of_node(node_dev->dev.id), cpu_online_mask); + n = cpumap_print_to_pagebuf(list, buf, mask); + free_cpumask_var(mask); + + return n; } static inline ssize_t node_read_cpumask(struct device *dev, |